According to Dalton's Law of Evaporation, what condition must be met for evaporation to cease?
Understand the Problem
The question asks about the condition required for evaporation to stop according to Dalton's Law of Evaporation. Specifically, it relates to the equation πΈπΏ = πΆ (ππ€ β ππ). We need to determine which of the provided options correctly describes when evaporation ceases based on the relationship between the saturation vapor pressure (ππ€) and the actual vapor pressure in the air (ππ).
Answer
Evaporation stops when vapor pressure equals saturated vapor pressure.
According to Dalton's Law of Evaporation, evaporation ceases when the vapor pressure equals the saturated vapor pressure.
Answer for screen readers
According to Dalton's Law of Evaporation, evaporation ceases when the vapor pressure equals the saturated vapor pressure.
More Information
Dalton's Law of Evaporation describes the relationship between vapor pressure and evaporation rate. Saturated vapor pressure refers to the pressure when the air is holding the maximum amount of water vapor it can at a given temperature.
Tips
A common mistake is to confuse Dalton's Law of Evaporation with Dalton's Law of Partial Pressures, which concerns the total pressure of a gas mixture.
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